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NSC Life Sciences – South Africa

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Question 161

What is the main cause of the greenhouse effect leading to global warming?
Environmental studiesClimate change and environmental impactmedium

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Question 162

Which method of reproduction results in offspring genetically identical to the parent?
ReproductionTypes of reproductioneasy

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Question 163

Which molecule carries genetic information from the nucleus to the ribosomes during protein synthesis?
DNA and geneticsDNA and geneticseasy

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Question 164

What is the main mechanism by which evolution occurs according to Darwin's theory?
EvolutionEvolutioneasy

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Question 165

Which organ is primarily responsible for filtering waste products from the blood to form urine?
Human physiologyHuman physiology - Excretory systemeasy

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Question 166

In an ecosystem, which term describes the variety of different species living in a habitat?
EcologyEcology - Biodiversitymedium

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Question 167

Which hormone regulates the menstrual cycle by causing the lining of the uterus to thicken?
ReproductionReproduction - Hormonal controlmedium

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Question 168

Which of the following best describes an ecological pyramid of biomass?
EcologyEcology - Energy flow and pyramidsmedium

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Question 169

Which process in human physiology involves the exchange of oxygen and carbon dioxide between the blood and body cells?
Human physiologyHuman physiology - Respirationhard

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Question 170

What is the basic structure of DNA?
DNA and geneticsDNA Structure and Functioneasy

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